Namco NB-1

The Namco NB-1 is a 32-bit arcade system board which was first used by Namco in 1993; NB-2 has a different memory map, more complex sprite and tile banking, and two additional ROZ layers over the NB-1. Great Sluggers: New World Stadium was the first game to use this board - and the following year, Nebulas Ray, Great Sluggers '94, J-League Soccer V-Shoot, Point Blank (original name Gun Bullet), The Outfoxies and Mach Breakers: Numan Athletics 2 were released on it. In 1995, the eighth title for Namco's long-running World Stadium series was released, Super World Stadium '95 (which borrowed heavily from that original Great Sluggers); in the two following years, it was followed up by Super World Stadium '96 and Super World Stadium '97, the second of which was the last game to use it.

Namco NB-1/NB-2 specifications

Main CPU: Motorola 68EC020 32-bit processor @ 12.5 MHz (for the NB-1 games), 24.192 MHz (for the NB-2 games)
Secondary CPUs: Namco C329 with C137
Custom graphics chips: Namco C123, C145, C156 and C116 (for the graphic effects) with Namco C355, C187 and C347 (for the motion objects)
Sound CPU: Namco C351 (utilized for the NB-1 games), Namco C75 (Motorola M37702-based 16-bit) @ 16.128 MHz (utilized for the NB-2 games)
PCM sound chip: C352 @ 16.384 MHz that supports 8-bit linear and 8-bit muLaw PCM with four-channel output
Control chip: Namco C160
Board composition: two boards (NB-1) or single board (NB-2); an additional "gun" interface board was also utilized for Point Blank. ^[1]


NB-1 MAIN PCB	NB-1 MAIN(B) PCB	NB-1 MEMEXT OBJ2 PCB	NB-1 MEMEXT OBJ8 PCB

Bandai Namco Holdings

Bandai ᐧ Namco

Video game development	Bandai Namco Entertainment Bandai Namco Partners B.B. Studio Cellius (51%) D3 Publisher Dimps

Animation	Bandai Channel Bandai Namco Pictures Bandai Visual Sunrise

Arcade system boards	Galaga Galaxian Pac-Land Pac-Man Phozon Pole Position NA-1 NB-1 ND-1 System 1 System 2 System 10 System 11 System 12 System 16 System 21 System 22 System 23 System 86 System 246 System 357 System FL System N2 Super Pac-Man Triforce Warp & Warp

Other industries	Hanayashiki Lantis Sotsu WiZ

Former subsidiary	Monolith Soft

Key people	Masaya Nakamura Katsuhiro Harada Keita Takahashi Toru Iwatani

Defunct	Banpresto BEC Namco Networks Namco Tales Studio

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